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Work Plan
Knight Ridder-Mlaml Herald Property
Prepared for.
Knight Ridder
HSA Project No. 8015.4385.00
July 13, 2005
SUBMITTED INTO THE
PUBLIC RECORD FOR
ATTORNEY -CLIENT PRIVILEGE
Draft
Work Plan
Knight Ridder Property
Miami, Florida
INTRODUCTION
The following includes a summary of the scope of work completed during previous assessment
activities and presents a work plan for additional assessment and remedial activities with the goal of
a no further action determination being issued for the Knight-Ridder, Miami Herald property,
located in Miami, Miami -Dade County, Florida (Site) as shown on Figure 1, and as further
described in Exhibit 'A'.
The plan includes 11 action items detailed further herein designed to confirm and delineate the
extent of soil and groundwater impact reported in the Phase II Environmental Site Assessment
(ESA), (EE&G April 2005) completed as a precursor to a proposed property transaction. The
Knight Ridder — Miami Herald Building (see Figure 1) is not included in the transaction.
Assessment and/or remedial activities are not proposed for this area of the Site. The Boulevard
Shops (see Figure 1) is a historically designated building and is included in the sale, but
development plans will not include demolition of this building. Assessment and/or remedial
activities are not proposed for this area of the Site. The proposed development of the Site, as
contemplated by the Buyer, includes constructing residential and retail units on the out parcels at the
Site.
Testing will be completed utilizing the following protocol: The Site will be divided into % acre
exposure units and sufficient soil samples will be collected to utilize the 95% upper confidence limit
(UCL) approach to calculate the average soil contaminant concentration, in accordance with Chapter
62-780, Florida Administrative Code (F.A.C.). Soil will be excavated for off -site disposal in areas
that the soil contaminant concentration exceeds three times the applicable direct exposure soil
cleanup target levels (SCTLs). Soil and groundwater concentrations will be compared to the
cleanup target levels provided in Chapter 62-777, Florida Administrative Code (FAC) and Chapter
24 of the Code of Miami -Dade County (Chapter 24). As directed by DERM, the SCTL for arsenic
included in the recently promulgated Rules of the Florida Department of Environmental Protection
(FDEP) will be included in the Chapter 24 standards. Provided below is a listing of the cleanup
target levels (CTLs) that will be used for the contaminants of concern (COCs) identified during the
previous assessment activities and the source of the CTL (FDEP or Chapter 24).
.i3MITTED INTO THE
UBLIC RECORD FOR
'71,1�, n ON ii-oit-ob
Groundwater and Surface Water Cleanup Target Levels
Contaminant
Groundwater
Criteria
Freshwater
Surface Water
Criteria
Marine Surface
Water Criteria
Groundwater of
Low Yield/Poor
Quality Criteria
(AWL?
(µgiL)
(µ8N
(N82)
Ammonia
2,800 ' 2
500
500
28,0001
Arsenic
10 1, 2
50 2
502
1001
Benzo(a)anthracene
0.05 1'2
0.031 1-
0.031 2
0.51
Benzo(k)fluoranthene
0.05 1'2
0.0312
0.031 2 1
0.51
Benzo(k)fluoranthene
0.5 1'2
0.031 2-
0.031 2
5 1
Benzo(a)pyrene
0.2 1'2
0.0312
0.031 2
21
Ideno(1, 2, 3-cd)
pyrene
0.05 1'2
0.031 £
0.031 2
0.51
Lead
15 f' 2
8.51, 2
5.6 2
1501
1 FDEP Chapter 62-777, FAC, Table 1 Groundwater and Surface Water Cleanup Target Levels
2 DERM Chapter 24 Technical Report, Table 1 Groundwater and Surface Water Cleanup Target
Levels
Soil Cleanup Target Levels
Contaminant
Direct Exposure
Leachability
Based on
Groundwater
Criteria
Leachability
Based on
Freshwater
Surface Water
Criteria
Leachability
Based on
Marine
Surface Water
Criteria
Residential
Commercial
(m8/1cf)
(m8/Ic)
(m8/kg)
(m8/kg)
(mgfkg)
***
Arsenic
2.1
12
***
***
Benzo (a)pyrene
0.1 1'1
0.7T,2
81'2
1.2 2
1.2 2
TRPH
460 1'2
2,700 1'1
340 1,2
340 1'2
340 1'2
1 FDEP Chapter 62-777, FAC, Table 2 Soil Cleanup Target Levels
*** Leachability values may be derived using the SPLP Test to calculate site specific SCTLs or
may
be determined using TCLP in the event oily wastes are present
2DERM Chapter 24 Technical Report, Table 2 Soil Cleanup Target Levels
We will submit a request in writing to Miami -Dade County Department of Environmental
Resources Management (DERM) to submit a Combined Report, providing the findings and data
collected during implementation, if any, Interim Source Removal, Site Assessment, and Remedial
Action Plan required.
BACKGROUND
Knight Ridder, Inc. and a potential property purchaser agreed upon a scope of work to investigate
the soil and/or groundwater at the Knight Ridder — Miami Herald �P�r�ojp�ert�y, located in Miami,
Miami -Dade County, Florida (Site). The work was condugy�l c 11 t 1 1N1"1H E
2
PUBLIC RECORD FOR
ITEM ON iio'-oc.
between Knight Ridder and the potential purchaser. EE&G Environmental Services, LLC (EE&G)
was retained by Greenberg Traurig, P.A., on behalf of the potential purchaser, to perform an
Environmental Site Assessment (ESA) of the Site. The site is shown in Figure 1. The Knight
Ridder — Miami Herald Building (see Figure 1) is not included in the transaction and assessment
and/or remedial activities are not proposed for this area of the Site. The Boulevard Shops (see
Figure 1) is a historically designated building and is included in the sale, but development plans
will not include demolition of this building and assessment and/or remedial activities are not
proposed for this area of the Site.
EE&G conducted a Phase I environmental site assessment (ESA) in January 2005, and identified
alleged Recognized Environmental Conditions (RECs) associated with historical Site operations. In
March through April 2005, EE&G completed a Phase II ESA to assess the soil and groundwater
quality for contaminants of concern (COCs) typically associated with the RECs identified during the
Phase I ESA. During this time, EE&G also conducted a limited -scope geophysical survey to
determine the presence of subsurface anomalies, e.g. underground storage tanks (USTs). HSA
observed the field operations and split samples of soil and groundwater samples for laboratory
analysis. The Environmental Site Assessment (EE&G, April 2005) included the following
recommendations:
1. Based on the presence of elevated concentrations of arsenic, lead, polynuclear aromatic
hydrocarbons (PAHs), and ammonia in groundwater samples collected across the
Property, EE&G recommended that further assessment be conducted to further
characterize these impacts;
2. Due to the presence of arsenic, total recoverable petroleum hydrocarbon (TRPH), and
PAH constituents in soil samples above the soil cleanup target levels (SCTL) given in
Chapter 62-777, Florida Administrative Code (FAC) and Chapter 24 of the Code of
Miami -Dade County (Chapter 24), EE&G recommended a contingency be established to
properly handle, characterize, and dispose of all soils excavated or removed from the
Site; and,
3. Due to the presence of scattered buried debris identified in limited areas on the southern
edge of the Property, EE&G recommended that a geotechnical engineer evaluate the
need to excavate these areas to minimize the potential for future settling.
REMEDIATION GOAL AND PLAN
The proposed development of the Site, as described by the Buyer, includes residential and
commercial units; a remedial strategy involving deed restrictions is not preferred. Therefore, the
remediation goal for the Site is to receive No Further Action (NFA) status under Risk Management
Options Level I and a Site Rehabilitation Completion Order (SRCO) from DERM utilizing cleanup
criteria for residential direct exposure. To achieve this goal, HSA will complete the following steps:
1. Submit a Work Plan for assessment and remediation at the Site for review and approval
by DERM;
3
SUBMITTED INTO THE
PUBLIC RECORD FOR
ITEM °,; n ON a-o9.oa .
2. Submit a request in writing to DERM for the submittal of a Combined Report at the
conclusion of the assessment and remediation. The Report will provide the findings and
data collected during the Interim Source Removal and Site Assessment, for review and
approval by the agency (in accordance with Chapter 62-780.450);
3. Research the depth -to -groundwater at the Site to determine the extent of the unsaturated
zone. The Phase II ESA reported soil contaminant concentrations exceeding the
respective SCTLs in soil samples collected from 0 to 2 feet, 2 to 4 feet, and 4 to 6 feet
below land surface (bls). Groundwater samples were collected from 5 to 9 feet bls in
order to adequately intersect the groundwater/soil interface. The following Work Plan
describes the assessment and/or remediation of soil from land surface to four feet bls.
If the results of the depth -to -groundwater research show that the water table depth is less
than four feet bls (Le., unsaturated zone thickness less than four feet), the results will be
submitted to DERM for review and approval before initiating the assessment and/or
remedial activities. The request will include, the technical justification supporting an
unsaturated zone thickness of less than four feet, and a revised sampling plan to
determine the vertical extent of soil impact.
If the results show that the water table is below four feet bls, the vertical delineation of
soil impact will be assessed and/or remediated as described in later text, using an
unsaturated zone thickness of four feet;
4. Divide the Site into '/, acre exposure units (15 Lots), with boundaries extending around
the potentially impacted areas identified during the EE&G ESA;
5. Collect additional soil samples from a sufficient number of locations in the unsaturated
zone to determine the horizontal and vertical extent of contamination. Samples will be
collected at two -foot intervals from land surface to the water table;
6. Use the 95% upper confidence limit (UCL) approach to calculate the average soil
contaminant concentrations. If the average soil contaminant concentration reported is
less than the direct exposure soil CTLs, then no further action will be required.
If the average soil contaminant concentration exceeds the SCTLs, then additional
remedial actions will be proposed and included in the Combined Report;
Complete interim source removal by excavating any soils that exceed three times the
applicable direct exposure SCTL. Soil will be excavated until laboratory analysis of
confirmatory soil samples collected from the base and sidewalls of the excavation are
reported at concentrations below the applicable SCTLs or until further excavation is not
reasonable. If any soil exceeding the SCTLs is "left -in -place", then additional remedial
actions will be proposed and included in the Combined Report;
7. Construct groundwater monitor wells in the 13 areas of shallow groundwater impact
identified during the Phase II ESA;
8. Collect groundwater samples for laboratory analysis of the parameters reported
exceeding the GCTLs, in the potentially impacted areas identified during the EE&G
ESA;
9. Complete interim source removal by removing impacted roundwater for on -Site and/or
off -Site treatment. Confirmatory groundwater samP JM1o1TeTtEDell TH E
4 PUBLIC RECORD FOR
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removal is completed. If any groundwater exceeding the GCTLs is "left -in -place", then
additional remedial actions will be proposed and included in the Combined Report;
10. Report the data collected from the assessment and remediation activities in a Combined
Report to DERM with a request for a SRCO or with a plan for additional assessment
and/or remediation, if necessary; and,
11. Obtain a SRCO or equivalent authorization that will permit Site development.
SCOPE OF WORK
The text below describes the Work Plan scope of work.
Research the Depth to Groundwater
SUBMITTED INTO THE
PUBLIC RECORD FOR
lTEM,1 ON ii'-*oe.
The first task includes researching the depth -to -groundwater at the Site. The ESA (EE&G, April
2005) reported soil contaminant concentrations exceeding the applicable SCTLs in soil samples
collected from 0 to 2 feet, 2 to 4 feet, and 4 to 6 feet bls. Groundwater samples were collected from
5 to 9 feet bls to adequately intersect the groundwater interface. The groundwater depth is critical to
determine the unsaturated zone thickness and the appropriate remedial measures and extent of these
measures required to address the soil impact reported at the Site. The depth -to -groundwater
research will include:
• A desktop evaluation of public records for historical groundwater and surface water
elevations in the vicinity of the Site. The evaluation will include records available from
government agencies including, but not limited to, the South Florida Water Management
District, DERM, and the FDEP; and,
• A survey to evaluate the wet -season water table elevation at the Site, evident by field
reconnaissance (i.e., "water marks" on the seawall), historical records and a Site survey
conducted by a certified Land Surveyor. The Site survey will determine the land surface
elevation of the ESA (EE&G, April 2005) sampling locations.
If the results of the depth -to -groundwater research show that the water table depth is less than four
feet bls (i.e., unsaturated zone thickness less than four feet), the results will be submitted to DERM
for review and approval before initiating the assessment and/or remedial activities. The request will
include, the technical justification supporting an unsaturated zone thickness of less than four feet,
and a revised sampling plan to determine the vertical extent of soil impact. If the results show that
the water table is below four feet bls, the vertical delineation of soil impact will be assessed and/or
remediated as described in later text, using an unsaturated zone thickness of four feet.
Groundwater Assessment and Remediation
Between March 11, 2005 and April 7, 2005, EE&G collected discrete groundwater samples from 41
direct -push points, including 40 shallow and nine (9) deep groundwater samples (labeled GW-1
through GW-35, and GW-38 through GW-43, see Figure 2) and from two existing monitoring wells
5
(labeled MW-A and MW-B). The groundwater samples were collected from 5 to 9 feet bls.
Groundwater samples were collected and analyzed for the following parameters:
• Ammonia — six groundwater samples were analyzed for ammonia using EPA Method 350.1;
• Total arsenic and lead — 42 groundwater samples were analyzed for total arsenic and lead
using EPA Method 6010;
• PAHs — 43 groundwater samples were analyzed for PAHs using EPA Method 8270;
• TRPH — 43 groundwater samples were analyzed for TRPH using the FL -PRO Method;
• 8-RCRA Metals — one groundwater sample was analyzed for the 8-RCRA Metals, including
arsenic, barium, cadmium, lead, mercury, selenium, and silver by EPA Methods 6010;
• Volatile organic compounds (VOCs) — 52 groundwater samples were analyzed for VOCs
using EPA Method 8260, including nine deep groundwater samples; and,
• Mineral spirits — four groundwater samples were analyzed for mineral spirits by modified
EPA Method 8015.
Laboratory analytical results reported concentrations exceeding the applicable GCTLs for the
following parameters:
• Ammonia — one groundwater sample was reported at a concentration exceeding the GCTL of
2,800 µg/L;
• Arsenic — seven groundwater samples were reported at concentrations exceeding the GCTL
of 10 µg/L;
• Lead - four groundwater samples were reported at concentrations exceeding the GCTL of 15
µg/L; and,
• PAHs — five groundwater samples were reported at concentrations exceeding the respective
GCTLs.
Concentrations of TRPH, 8-RCRA Metals, VOCs, and mineral spirits were reported at
concentrations either below the laboratory detection limit or reported below the applicable GCTL
for all groundwater samples collected during the ESA. Additional groundwater samples will be
collected to assess the extent of ammonia, arsenic, lead, and PAHs in the areas were concentrations
were reported above the applicable GCTL. There will be no additional analyses for TRPH, 8-
RCRA Metals, VOCs, and mineral spirits.
Table 1 provides a summary of the groundwater laboratory analytical results from the ESA (EE&G,
April 2005) that were reported at concentrations exceeding the groundwater cleanup target levels
(GCTL). The groundwater sampling locations and concentrations are shown in Figure 2.
Groundwater concentrations exceeding the applicable GCTLs were reported in samples collected
from a total of 13 direct push points (GW-5, GW-8, GW-11, GW-18, GW-18, GW-19, GW-21,
GW-22, GW-27, GW-29, GW-31, GW-34, GW-41, and GW-43). Groundwater monitor wells will
be constructed in the 13 areas reported with concentrations exceeding the GCTLs. Groundwater
samples will be collected from the 13 new wells for the parameters (ammonia, arsenic, lead, and
PAHs) previously reported above the respective GCTL.
6
SUBMITTED INTO THE
PUBLIC RECORD FOR
1TEMn ON .
3UBMITTED INTO THE
PUBLIC RECORD FOR
ITEM io+n ON n•os oo .
Monitor wells will be installed to a depth of approximately 15 feet bls, an cod nstructed using two-
inch diameter PVC with 10 feet of 0.010-inch slotted screen and solid PVC riser to the surface. The
monitoring wells will be completed at the surface with concrete manholes, watertight caps, and
locks. Groundwater samples will be collected from these wells in accordance with the FDEP
standard operating procedures (SOPs) and will be submitted to a laboratory for analysis of the
parameters previously reported above the GCTLs (ammonia, arsenic, lead, and PAHs). If the
parameters are reported at concentrations below the applicable GCTL then no further action will be
required for groundwater in these areas.
If the results confirm the contaminant concentrations reported in the ESA (EE&G, April 2005), then
additional monitoring wells will be installed, and groundwater samples will be analyzed, to
delineate the vertical and horizontal extent of impact. If the groundwater impact is localized, then
interim source removal activities will be completed, including groundwater recovery with on -Site
and/or off site treatment. If any impacted groundwater with concentrations exceeding the
applicable GCTLs is "left -in -place", then additional remedial actions will be proposed and included
in the Combined Report
Soil Assessment and Remediation
Between March 11, 2005 and April 7, 2005, EE&G advanced a total of 44 soil borings (labeled SB-
1 through SB-44, see Figure 2) across the Site using direct -push drilling technology (i.e., geoprobe).
The soil samples were collected from surface grade to approximately eight feet bls, using a Macro
Core sampler. The samples were collected in four -foot acetate liners and segregated into two -foot
intervals for field analysis. The samples were visually inspected and screened using an organic
vapor analyzer, equipped with a flame ionization detector (OVA/FID). Soil samples were collected
for analysis of the following parameters:
• Arsenic - 77 soil samples were analyzed for total arsenic, including 34 collected from 0 to 2
feet bls, 39 collected from 2 to 4 feet bls, and four from 4 to 6 feet bls;
• PAHs - 15 soil samples were analyzed for PAHs using EPA Method 8270;
• TRPH — 26 soil samples were analyzed for TRPH using the FL -PRO Method;
• 8-RCRA Metals — six soil samples were analyzed for 8-RCRA Metals, including arsenic,
barium, cadmium, lead, mercury, selenium, and silver by EPA Methods 6010 and 7470;
• VOCs — 12 soil samples were analyzed for VOCs using EPA Method 8260;
• Organochlorine pesticides — five soil samples were analyzed for organochlorine pesticide by
EPA Method 8081; and,
• Polychlorinated biphenyls (PCBs) — five soil samples were analyzed for PCBs using EPA
Method 8082.
Laboratory analytical results reported concentrations exceeding the applicable SCTLs for the
following parameters:
7
• Arsenic - 26 soil samples were reported with arsenic concentrations exceeding the direct
exposure residential SCTL of 2.1 mg/kg;
• PAHs — five soil samples were reported with benzo(a)pyrene concentrations exceeding the
residential direct exposure SCTL of 0.1 mg/kg, including one sample that contained a
"heavy petroleum -like interference, which resulted in a dilution that increased the detection
limits to above the SCTLs"; and,
• TRPH — one soil sample, SB-42 collected from 4 to 6 feet bls, was reported at a
concentration of 2,100 mg/kg, exceeding the groundwater based on leachability SCTL of
340 mg/kg;
Concentrations of the 8-RCRA Metals, VOCs, organochlorine pesticides, and PCBs were reported
at concentrations either below the laboratory detection limit or reported below the applicable SCTL
for all soil samples collected during the ESA. Additional soil samples will be collected to assess the
extent of the arsenic, benzo(a)pyrene, and TRPH impact in the areas where concentrations were
reported above the applicable SCTL. There will be no additional analysis for 8-RCRA Metals,
VOCs, organochlorine pesticides, and PCBs.
Soil samples from the top two feet (0 to 2 feet bls) which yielded concentrations exceeding the
applicable SCTLs were collected in the center of Lot B and the southern edge of Lot A (see Figure
2). Of the 34 soil samples from the top two feet, which were analyzed for arsenic, seven were
reported by the laboratory to have arsenic concentrations above the SCTL of 2.1 mg/kg. These
concentrations ranged from 2.1 to 4.9 mg/kg. Most soil samples reported above the SCTLs were
collected below the top two feet (i.e., 2 to 4 feet bls). As shown on Figure 2, the locations of soil
samples collected from below the top two feet with elevated arsenic concentrations were scattered
from the southern edge and northwest corner of Lot A, the center of Lots B and D, and Lot C.
Elevated concentrations of benzo(a)pyrene were reported in the soil samples collected from the top
two feet of the northern center of Lot C, the center of Lot B, and the southern edge of Lot A. The
benzo(a)pyrene concentrations ranged from 0.37 to 0.53 mg/kg, exceeding the SCTL for direct
exposure of 0.1 mg/kg and the leachability based on groundwater criteria from Chapter 24 of 8.0
mg/kg. The laboratory analytical reports indicate that the soil sample SB-42 collected from 4 to 6
feet bls at the southeast corner of Lot A, was reported by the laboratory to have a TRPH
concentration of 2,100 mg/kg, which exceeds the leachability based on groundwater criteria of 340
mg/kg.
In accordance with Chapter 62-780, FAC, for residential direct exposure, the exposure unit shall not
exceed 'A acre and shall be located within the source property boundaries. The proposed approach
is to divide the areas of the Site with reported soil concentrations exceeding the SCTLs into ''A acre
parcels and then collect additional soil samples from these areas. The Site will be divided into (15)
one -quarter acre exposure units, with boundaries extending around the potentially impacted areas
identified during the EE&G ESA. Figure 3 depicts the locations of square, quarter acre units
(labeled Parcel A 1 through Parcel D2, referenced to the parking lot letter).
Since a minimum of 10 representative soil samples are required to use the Florida UCL (FLUCL)
tool, additional samples will be collected at randomly chosen locations from each of the 150rea<s, 0 1- H
8
UBL!C RECORD FOI
nig
_M,4,i,1 ON 1I .Da-D*
until a total of at least 10 samples are collected, from both 0 to 2 feet bls and 2 to 4 feet bls.
Figures 4 through 18 show the individual quarter acre parcels with their proposed soil sampling
locations. The soil sampling locations were determined using a random number function and
overlying a 10-foot by 10-foot coordinate system for each Unit. The FLUCL calculator will be
used, with a 95% upper confidence limit (UCL), to calculate the average soil arsenic concentration.
If the average soil contaminant concentration reported is less than the direct exposure soil CTLs,
then no further action will be required for the soil in these areas. If the average soil contaminant
concentration exceeds the SCTLs, then additional remedial actions will be proposed and included in
the Combined Report.
An Interim Source Removal will be completed and the soils that exceed three times the applicable
direct exposure SCTL will be excavated and transported off -site for disposal. Soil will be excavated
until laboratory analysis of confirmatory soil samples, collected from the base and sidewalls of the
excavation, report soil concentrations below the applicable SCTLs or until further excavation is not
feasible. If any soil exceeding the SCTLs if left -in -place, then additional remedial actions will be
proposed and included in the Combined Report.
As depicted on Figure 4 through Figure 18, soil samples will be collected from 0 to 2 feet bls in
four parcels (Parcels A4, A5, B2, and B3) and analyzed to calculate the average arsenic
concentrations for each parcel. Soil samples will be collected from 2 to 4 feet bls in 12 parcels
(Parcels A2, A5, B1, B2, B3, B4, B5, C1, C2, C3, DI, and D2) and analyzed to calculate the
average arsenic concentrations for each parcel. Soil will be excavated from 0 to 2 feet bls in three
parcels (Parcels Al, A2, and B3) as an interim source removal of arsenic. Soil will be excavated
from 0 to 2 feet bls in four parcels (Parcels A2, A3, A5, and C2) as an interim source removal of
benzo(a)pyrene. The soil sampling associated with each Parcel is summarized below:
• Parcel Al (see Figure 4) - excavate soil from 2 to 4 feet bls in the vicinity of SB-14 (arsenic
reported at a concentration [7.5 mg/kg] greater then three times the SCTL and interferences
associated with the PAH analysis);
• Parcel A2 (see Figure 5) — excavate soil from 2 to 4 feet bls in the vicinity of SB-1 (arsenic
reported at a concentration [13.5 mg/kg] greater then three times the SCTL), excavate soil
from 0 to 2 feet bls in the vicinity of SB-2 (benzo(a)pyrene reported at a concentration [0.39
mg/kg] greater then three times the SCTL and arsenic reported [3.3] above the SCTL), and
collect eight samples from 2 to 4 feet bls at random locations for arsenic analysis to
complete the FLUCL calculations;
• Parcel A3 (see Figure 6) — excavate soil from 0 to 2 feet bls in the vicinity of SB-3
(benzo(a)pyrene reported at a concentration [0.37 mg/kg] greater then three times the
SCTL);
• Parcel A4 (see Figure 7) — collect eight samples from 0 to 2 feet bls at random locations for
arsenic analysis to complete the FLUCL calculations;
• Parcel A5 (see Figure 8) — excavate soil from 0 to 2 feet bls in the vicinity of SB-6
(benzo(a)pyrene reported at a concentration [0.52 tr _rOS tHE
9UNTIED I�
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SCTL), collect eight samples from 0 to 2 feet bls at random locations for arsenic analysis to
complete the FLUCL calculations, and collect eight samples from 2 to 4 feet bls at random
locations for arsenic analysis to complete the FLUCL calculations;
• Parcel B 1 (see Figure 9) — collect nine samples from 2 to 4 feet bls at random locations for
arsenic analysis to complete the FLUCL calculations;
• Parcel B2 (see Figure 10) — collect seven samples from 0 to 2 feet bls and seven samples
from 2 to 4 feet bls at random locations for arsenic analysis to complete the FLUCL
calculations;
• Parcel B3 (see Figure 11) — excavate soil from 2 to 4 feet bls in the vicinity of SB-19
(arsenic reported at a concentration [11 mg/kg] greater then three times the SCTL), collect
seven samples from 0 to 2 feet bls and eight samples from 2 to 4 feet bls at random locations
for arsenic analysis to complete the FLUCL calculations;
• Parcel B4 (see Figure 12) — collect nine samples from 2 to 4 feet bls at random locations for
arsenic analysis to complete the FLUCL calculations;
• Parcel B5 (see Figure 13) — collect nine samples from 2 to 4 feet bls at random locations for
arsenic analysis to complete the FLUCL calculations;
• Parcel Cl (see Figure 14) — collect nine samples from 2 to 4 feet bls at random locations for
arsenic analysis to complete the FLUCL calculations;
• Parcel C2 (see Figure 15) — excavate soil from 0 to 2 feet bls in the vicinity of SB-26
(benzo(a)pyrene reported at a. concentration [0.53 mg/kg] greater then three times the
SCTL), and collect eight samples from 2 to 4 feet bls at random locations for arsenic
analysis to complete the FLUCL calculations;
• Parcel C3 (see Figure 16) — collect eight samples from 2 to 4 feet bls at random locations for
arsenic analysis to complete the FLUCL calculations;
• Parcel D1 (see Figure 17) — collect nine samples from 2 to 4 feet bls at random locations for
arsenic analysis to complete the FLUCL calculations; and,
• Parcel D2 (see Figure 18) — collect nine samples from 2 to 4 feet bls at random locations for
arsenic analysis to complete the FLUCL calculations.
Combined Report
A report will be prepared after completing the assessment and remediation that provides the findings
and data collected during the Interim Source Removal and Site Assessment. If necessary, the
Combined Report will include a plan for additional assessment and/or remediation. The Report will
be submitted to DERM with a request for a SRCO, or equivalent authorization that will permit Site
development.
I:\W-RE\32900\075\Draft Work Plan_3.doc
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SUBMITTED INTO TN.
PUBLIC RECORD FOF
ITEM ON 11. o's
EXHIBIT 'A'
Lots 3, 4, 5, 6, 7, 8 and 9, Block 2 and that portion of Lot 10, Block 2, lying East of
Biscayne Boulevard, THE GARDEN OF EDEN, according to the Plat thereof, as
recorded in Plat Book 4 at Page 12 of the Public Records of Miami -Dade County,
Florida; together with Lots 12, 13,14, 15 and 16, Block 1, and that portion of Lot 11,
Block 1, lying East of Biscayne Boulevard, PERSHING COURT, according to the Plat
thereof, as recorded in Plat Book 4 at Page 147 of the Public Records of Miami -Dade
County, Florida.
AND
Lots 1, 2, and 3, Block 2, A RESUBDIVISION OF LOTS 25, 26 & 70, NELSON VILLA
SUBDIVISION AND LOTS 1 & 2, BLOCK 1, GARDEN OF EDEN SUBDIVISION,
according to the Plat thereof, as recorded in Plat Book 9 at Page 174 of the Public
Records of Miami -Dade County, Florida; together with Lots 4, 5 and 6, Block 2, and that
portion of Lot 7, Block 2, lying West of Herald Plaza, AMENDED PLAT OF LOTS 4
TO 16, INCLUSIVE, BLOCK 1 AND LOTS 4 TO 20 INCLUSIVE, BLOCK 2 OF A
RESUBDIVISION OF LOTS 25, 26 & 70 NELSON VILLA SUBDIVISION AND LOTS
1 & 2, BLOCK 1, GARDEN OF EDEN SUBDIVISON, according to the Plat thereof, as
recorded in Plat Book 30 at Page 20 of the Public Records of Miami -Dade County,
Florida; together with Lots 1 and 2, Block 2, THE GARDEN OF EDEN, according to the
Plat thereof, as recorded in Plat Book 4 at Page 12 of the Public Records of Miami -Dade
County, Florida; together with Tracts A and B, KNIGHT RIDDER #1, according to the
Plat thereof as recorded in Plat Book 151, at Page 78 of the Public Records of Miami -
Dade County, Florida; together with Lots E-7, E-8, E-9, E-10, S-2, W-5, W-6, W-7, W-8
and P-3, THE CAUSEWAY FILL, according to the Plat thereon as recorded in Plat Book
5 at Page 120 of the Public Records of Miami -Dade County, Florida, LESS that portion
of Lot P-3 lying within the right of way for State Road No. A 1-A (N.E. 13th Street) as
shown on that certain Right of Way Map for State Road No. A 1-A, Section 87060-2117;
subject to the Right of way for the Metromover Extension Project, Omni Extension, as
shown on that certain Right of Way Map recorded in Road Map Book 124 at Page 65 of
the Public Records of Miami -Dade County, Florida.
AND
Tract A, HERALD PARK, according to the plat thereof, as recorded in Plat Book 121,
page 4, Public Records Miami -Dade County, Florida.
11
AMITTED INTO THE
UBLIC RECORD FOR
TEMjin ONJEktok.
atv a irg
TABLES
,UdMITTED INTO THE
UBLIC RECORD FOR
TEM w n ON II -at -no
1 1 1 1 1 I 1 1 I 1 I I I I 1 1 1 1 1
TABLE 1
ANALYTICAL RESULTS FOR GROUNDWATER SAMPLES
Parameter
Cleanup TargetLevel
GW-S
GW-8
GW-11
GW-18
GW-19
GW-21
GW-22
GW-27
GW-29
GW-31
DERM
GCTL
NADSC
Benzo (a) anthracene
0.05
0.05
20
0.33
Benzo (b) fluoranthene
0.05
0.05
20
0.17
0.18
0.17
0.66
0.22
Benzo (k) fluoranthene
0.5
0.5
_
50
0.72
,
Benzo (a) pyrene
0.2
r 0.2
20
_
0.37
0.50
Indeno (1,2,3-c,d) pyrene
0.05
0.05
20
0.52
0.64
Arsenic
10
10
100
24
12
14
30
14
Lead
15
15 1
150
140
18
50
Ammonia as N ,
2,800
2,800
28,000
2.9
DERM: Chapter 24, DERM, Miami -Dade County
GCTL: Groundwater Cleanup Target Levels per Chapter 62-777, Table I, FAC
NADSC: Natural Attenuation Default Source Concentrations per Chapter 62-777, Table V, FAC
Only concentrations greater than the GCTL are shown.
All concentrations are in µg/L.
Page 1 of 2
t I 1 I 1 1 i 1 I 1 1 1 I I 1 I 1 1
TABLE 1
ANALYTICAL RESULTS FOR GROUNDWATER SAMPLES
Parameter
Cleanup Target Level
GW-34
GW-41
GW-43
DERM
GCTL
NADSC
Benzo (a) anthracene
0.05
0.05
20
Benzo (b) fluorantltene
0.05
0.05
20
Benzo (k) fluoranthene
0.5
0.5
50
Benzo (a) pyrene
0.2
0.2
20
Indeno (1,2,3-c,d) pyrene
0.05
0.05
20
Arsenic
10
10
100
12
17
Lead
15
15
150
32
Ammonia as N
2,800
2,800
28,000
DERM: Chapter 24, DERM, Miami -Dade County
GCTL: Groundwater Cleanup Target Levels per Chapter 62-777.
NADSC: Natural Attenuation Default Source Concentrations pe
Only concentrations greater than the GCTL are shown.
All concentrations are in µg/L.
Page 2 of 2
1 1 1 1 1 I 1 1 l 1 1 1 1 1 1 1 1 1 1
Parameter
SCTL
Direct Exposure
Residential
Industrial
Leachability Based
on Groundwater
TABLE 2
ANALYTICAL RESULTS POR SOIL SAMPLES
SB-1(24R)
SB-2 (0-2R)
SB-3 (0-2R)
88-5 (0-2R)
SB-6 (0-2 R)
SB-7 (0-2R)
SB-7 (2-411)
88-8 (2-4R)
Beam (a) maw
0.1 (0.1)
0.7 (0.7)
8 (8)
0.39
0.37
0.52
TRPH(FLPRO)
460 (460)
2700 (2700)
340 (340)
Arsenic
2.1 (0.7)
12 (4.1) SPLP (5.8)
13.5
3.3
2.6
2.4
2.2
2.3
Bantu l (+) yrene
0.1 (0.1)
0.7 (0.7)
8 (8)..
Interference
- - -
-- -- -
TRPH (FLPRO)
460 (460)
2700 (2700)
340 (340)
Arsenic
2.1 (0.7)
12 (4.1)
SPLP (5.8)
2.3
7.5
2.6
3.5
2.3
3.5
4.3
2.1
SB-19 (2-4R)
SB-21(0-2(t)
SB-21(2-411.)
SB-22 (2r4R)
SB-2412-4R)
SB-25 (2-41t)
SB-26 (0-21t)
SB-26 (4-611)
BmxoJa)Dyretic
0.1 (0.1)
0.7 (0.D
8 (8)
-
0.53
TRPH LPRO)
460 (460)
2700 (2700)
340 (340)
Arsenic
2.1 (0.7)
12 (4.1)
SPLP (5.8)
11
4.9
2.5
2.4
2.2
2.7
3.1
S11-27 (2-019
SB-28 (4-6ft)
SB-29 (2-4R)
S11-32 (2-4R)
SB-34 (2-4ft)
SB42 (4-6(t)
Benno (a) wane
0.1 (0.1)
0.7 (0.7)
8 (8)
TRPH(FLPRO)
460 (460)
2700 (27000,
340 (3401
2,100
Arsenic
2.1 (0.7)
12 (4.1)
SPLP (5.8)
3.2
5.9
3.8
3.2
4.4
Only results grata Bran the SCTL ere shown.
SCTL: Soil Cleump Target Levels (SCTLs). Chapter 62-777, Table II, FAC
() = Soil Cleanup Target Levels, Chapter 24 Miami -Dade Candy Code
MI concentrations given in milligrams per kilogram
SPLP: Syrdhatic Precipitation Leaching Procedure
FIGURES
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ITEM ,in ON 11_04.04.
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ENGINEERS & SCIENTISTS
KNIGHT REDDER
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MIAMI. DADE COUNTY, FLORIDA
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LEGEND
so-41A SAMPLING R CCATION
As ARSENIC
BP BENZO(a)PYRENE
PROPOSED SOIL SAMPLE LOCATION
ENGINEERS ac SC EN1ISYS
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SUSPECTED 8P IMPACTED t% TO 2 T. Bi235
KNIGHT RIDDER
MIAMI HERALD PROPERTY
MIAMI. DADS COUNTY,FLORIDA
9#Ep 11tE
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As ARSENIC
PROPOSED SOIL SAMPLE LOCA.tU N
.. PROPOSED CROUNDWA1ER SAMPLE LOCATION
2ENZO(Cx:A4dTHRACZS4E E 0,35 °delft
CTL — GROUNUWATER CLEANUP
TARGET LEVEL
KNIGHT RIDDER
MIAMI HERALD PROPERTY
mum. DADE COUNTY, FLORIDA
SUBMITTED INTO THE
PUBLIC RECORD FOR
o1,.
0 fNi 15
.ALE. J
LEGEND
SB-41` SAMPLING LOCATION
As ARSENIC
BP BENZO(a)PYRE.NE
PROPOSED SOIL SAMPLE LOCATION
POLYNUCLEAR AROMATIC
PAH HYDROCARBONS
TOTAL RECOVERABLE
TRPH PETROLEUM
HYDROCARBONS
SUSPECTED 8P IMPACTED (0 TO 2 FT. BLS).
SHEET TILE
PARCEL. A6
0 fiNt 15
*121!!1111
miiSA
ENGINEERS de SCIENTISTS
1.411111—A Illows Ora lint Palma Somouft Rola 411341711 Mk OW, aao-spoos
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•
PUBLIC RECORD FO
ITEM 1:Wri °Nit -
KNIGHT RIMER
MIAMI HERALD PROPERTY
mum, DADE COUNTY. FLORIDA
SFEET IRE
PARCEL RE
MIRE 9
0 iset 15
SUBMITTED INTO T
3BPi0.f3
BAP 0.37
IP 0.52
As 14
LEGEND
SR-41A SAMPLING LOCATION
As ARSENIC
40 PROPOSED SAMPLING POINT
OCTL — GROUNDWATER CLEANUP
I PROPOSED GROUNDWATER SStANREFUDILMOBN
Xt420(b‘;FLVAAt4THENE. 0.05
aEMzx ) :NSF k a.
ARSE.'?-ilr
TARGET LEVEL.
SAP
S
a
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ENGINEERS & SCIENTISTS
14-A Nkomo limed Mod Ian WY4 Amber 3 411 Talc (9O1) ,
KNIGHT RIDDER
WW1 HERALD PROPERTY
NEW, DADE COUNTY; FIARIDA
MEET 19.E
PARCEL E%
FIGURE 10
SB-41` SAMPLING LOCATION
As
0 1..f 15
Sti�1Lt.
ARSENIC
PROPOSED SAMPLING POINT
PROPOSED GROUNDWATER SAMPLE LOCATION
.SUSPECTED As IMPACTED 42 ID 4 FT BLS)
j AANT?NACE iE
1,2, !-:.:,,»P"YR :,:e.
ONO,
EVk flGm.
SAP
SAA
Pb
NH 3
GCTL - GROUNOWATER CLEANUP TARGET LEVEL
$
it
i
a
a
�.
.
KNIGHT RIDDER
MIAMI HERALD PROPERTY
MEET VIE
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ENGINEERS Ile SCIENTISTS
LIMA DADE COUNTY, FLORIDA
y[
14 Skew Mired 11Y! Rim Florida 334fl
Ut
(811!)
S-1100S
FIG= 11
-A MM.
11111111111111
OMNI 11111111111111 INNS 11111111111.
f't f
Lm. -hi ON II-0.01,i
SH/GW-41A SAMPLING LOCATION
As ARSENIC
0 fest 15
® PROPOSED SAMPLING POIPINT
W!!I PROPOSED GROUNDWATERRSIAIEELWIN
5ENZ(bATHO 10,0
.3.edZo)P fiReNE •i 0,2
3E1•4:10(MAI4ThRACZNE
X.NZOWFWAAN j. C., 5
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RSEMC 10
AD 15
.Mar.:114.1A sec
GCJL — GROUNDWAIER CLEANL1P
TARGET LEVEL
'044T,4.1.41MANT. Cif C.1CN.C.i.R141C1. . A8SREVA IC#1
ear
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tallow RIDDER
WWII HERALD PROPERTY
MIME 1 COUNTY. FLORIDA
SIIEET 1TRE
PARCEL 64
PIGURE 12
ENGINEERS & SCIENTISTS
SUBMITTED INTO THE
PUBLIC RECORD FOR
pi. is
ITEMxim ON 1149-ot.
KNIGHT RIDDER
MIAMI HERALD PROPERTY
MIAMI, DADE COUNTY, FLORIDA
MIS AIM UNE MIMI Ell MIMI Eli EMI
As ARSesIIC
0 PROPOSED SAMPLING POINT
aliSA
ENGINEERS & SCIENTISTS
44111—A Skarn 11444 VisirlAPi 1160411, Florida 354I T44 (541) 6131-1110041
3UBMITTED INTO T
1t1t RECORD F
voNis:ITNop
ITEM t&Pftg ON it -off -
KNIGHT RIDDER
MIAMI HERALD PROPERTY
MEWL DADE COUNTY, FLORIDA
0
WEI TILE
PARCEL CI
?SURE 14
E
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Al 111111 NMI 11111
LEGEND
SB-41 4 SAMPLING LOCATION
0 tort ti5
!!!
MW—B+
As ARSENIC
BP BENZO(a)PYRENE
m PROPOSED SAMPLING PONT
PROPOSED GROUNDWATER SAMPLE LOCATION
NM MU VIM
EXISTING GROUNDWATER
MONITORING Will.
SUSPECTED BP
IMPACTED
(O TO 2 FT. BLS)
�kd'iAfi1 9 R? ;: 0P i 'dL I A38REVATiCN e
E 1.2.0(Or /i0f?AN ^9eriS f 0.05 38F
4.200. NE 0.2 RAP
1 iz`t(1/4p J ORAN-NENE0.5 3i(F
s ARS2NC it Aa
AMMONIA 1 2.3OC Nil3
GCIL — GROUNDWATER CLEAMLIP TARGET LEVEL
;11
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14•14—A Mom Mood 1010 Pams �. fxrwe 33441 Irk (WI S5 -900s
KNIGHT REDDER
MEANT HERALD PROPERTY
MIAMI. DADE COUNTY. FLORIDA
SHEET fl
PARCEL C2
0 feet 15
CALE
MITTED NTOJ
PUBLIC REC F
B-28
A 1 4#4,15774) /114
LEGEND
SB-41A SAMPUNG LOCATION
.71-2A
Vf
As ARSENIC
® PROPOSED SAMPLING POINT
S PROPOSED GROUNDWATER SAMPLE LOCATION
CCANTANNANT .3F CONCERN XII i, AasiREVATictil
',,aENzcit...bxtuceANTHENE , a.o5 I BeF
3ENIZCIA;IPYRENC 0.2 i Ap
ANZC(o:YAST)4RACENE 1
3ENZO(k)Fi.'-;OPAtiThee Z,S i 3KF
! .t,tile'100,2,3--::rfP.IFLENE 0.G'S iP
4.05ENIC 10 1 Az
fil-13
GC - GROUP400/KIIR CLEANUP TARGET LEVEL
mliSA
ENGINEERS & SCIENTISTS
14111,-A Wawa Rood Mot Palm Saaait. Dame 33411 Tub (af) 41111F-110011
KNIGHTRIDDER
MIAILI HERALD PROPERTY
WOG, DADE COUNTY, FLORIDA
MEI 111E
PARCEL C:3
MORE 16
SS-41A SAMPLING LOCATION
ENGINEERS & SCIENTISTS
140 -A 0004 R 04 41414 41460 01000.. P0004 3101
i.;slglTi'ED INTO THE
1J3LC RECORD FOR
TEP:1w ONIii-of-04.
KNIGHT RIDDER
MIAMI HERALD PROPERTY
MUM, DADE COUNTY. FLORIDA
CO fleet 155
M!"*Mil
jEr lie
II 41 1r m f*:
SIIINCVW441a. SDANRUNG LOCATION
Albs AGESINIC
• FROINOSED SAMPUNG POINT
PI3RESTOSE0 GROUNDWATER SAMPLE LOCATION
1111/1111U
EINGISKIEIEfai SIDESITEHTS
14.111111A/Callivaallied Vill100111101111100billikto .at Tai: Oat 660-90011
CCI ,a, PEVA 'PON f
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..,
-L., „..L ..........,
°CIL - GROUNDWATER CLEANUP
TARGET LEVEL
KNIGHT RIDDER
MIAMI HERALD PROPERTY
MIAML DAD ff COUNTY. FLORIDA
SHEET ITLE
PARCEL D2
FIGURE 18
-11-HSA
ENGINEERS AND SCIENTISTt3
AMember of the CRA Fatah) ofCompanies
LETTER OF TRANSMITTAL
TO: Mr. Wilbur Mayorga, P.E.
Company:
Address:
DATE: -I, LJ W
Miami -Dade County Environmental
Resources Management
33 S.W. 2nd Avenue
Suite 600
Miami, FL 33130-1540
cC: Larry Marbert, Knight Ridder
FROM: Mr. Terry Horan
RE:
ED INTO THE
?L!C RECORD FOR
T M,& ;BON /-09.0ta
Knight Ridder-Miami Herald Property
Work Plan
r"LIVIE
We are lending you
the following items:
® Attached
❑ Shop drawings
❑ Specifications
❑ Under Separate Cover
❑ Prints 0
❑ Change Order 0
DERM
❑ via: Pollution Ri mediator
Reports ❑ �p�,tlotl
Ocher:
Caplan
Date:
Demeipikm:
1
7/13/2005
8015-4385-00
Knight Ridder-Miami Herald Work Plan
These are tranmitted as checked below:
® For Approval
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Dear Mr. Mayorga:
Please find enclosed one copy of a Work Plan for assessment and remedial activities proposed
for the Knight Ridder Miami Herald Property. We would appreciate your review and
comments on the enclosed scope of work. Please call us with any questions or comments.
Thank You
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